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c. SINCLAIR. Ratchet Drill.

7 o 81,694. Patented Sept. 1. 1868.

fzmwibgf N-PETERS, PHOTD-LITHOGRAEHER. WASHINGTON, D Q

CHARLESSINGLAIR, OF NEW YORK, N. Y.

Letters Patent No. 81,694, dated September 1, 1868;

IMPROVEMENT IN RATGHET-DRILL.

. an firigehule numb t: in ilgttt itettcrs name mm mating and mi tigesame.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, CHARLES SINCLAIR, of the city, county, and State ofNew York, have invented a new and improved Ratchet-Drill; and I dohereby declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art to makeand use the same, reference being had to the accom-' panying drawings,forming a part of this specification. I

Figure lreprcscnts a plan or top view, partly in section, of myimprovedratchet-drill, the plane of section being indicated by the linea: a, fig.

Figure 2 is a vertical longitudinal sectional view of the same, taken onthe plane of the line y y, fig. 1.

Similar lcttcrsof reference indicate corresponding parts. p

I Thisinvcntion relates to a new ratchet-drill of that class which isturned or rotated in the same directioti, in.whatevcrdirection thehandle may he turned or oscillated.

The invention consists in such a combination of thehandle with thewheels, pawls, and shell, that the desired result is obtained by simpleand eflicient means.

A, in the drawing, represents a spindle or arbor, on the end of whichthe drill Bis secured. This spindle is fitted through a wheel, C, a diskor handle, I); and through the opposite ends of the arms of a bifurcatedhandle, E. The wheel C and disk Dare held between the arms a Z: ofthe'handle E, as shown in fig. 2.

The parts 0 D E are prevented from playing up and down on the spindle,by means of a shoulder, F, formed on the spindle above, and by a pin orshoulder, a, fitted through or on the spindle A, below the handle E, asshown.

The shoulder F is, or supports, a ratchet-wheel, into which aspring-pawl, G, pivoted to the arm a of the handle E, catches. v v

By holding the handle D, the drill will be retained in the properposition, and then, by turning-the handle E in the direction of arrow 1,in fig. 1, the pawl will carry the wheel F, and with it the spindle Aand dr'ill'B, around in the same direction. i i l When, however, thehandle E is turned in the opposite direction, which is indicated by'the'arrow 2, fig. 1, the pawl G will slip on the wheel F, \vhile'anotherpawl, H, which is secured to the handle E, fitting into the toothodedgcof thewhccl C, will carry the said wheel C around in the saniedirectibnof the arrow 2.

The wheel 0 is provided with internal gearing 01, into which meshes apinion, e, secured to the handle D,

"as shown. The pinion meshes into a. toothed wheel, I, which is looselyfitted around the spindle A, and which has ratchet-teeth formed on-itsinner edge, as shown in figrl.

'3' is a boltfittcd into a-sockct,f, that is formed in the spindle A, aspiral or other spring, g, being interposed between the end of thesocket and the bolt, as shown. The pointed or wedge-shaped cnd,of thebolt is, by the spring'g, forced against the toothed inner edge of thewheel I.

When the spindle is turned in the direction of the arrow 1,, by the pawlG, the bolt J will slip on the wheel I, but when the disk C is turned inthe direction of the arrow 2, it will turn the pinion a in the directionof the arrow 3, and the same will revolve'the wheel I in the directionof the arrow 4, the wheel I carrying, by moans of the spring-bolt J, thespindle A and drill 13 around with it. v Thus, when the whole apparatusis held steady, bymeans of the handle D, and when the handle E isoscillatcd around the spindle A, the spindle and drill will be revolvedin the direction of the'arrows 1 and 4, fig. 1; that is, in whateverdirection the handle E may be swung, the drill will be continuouslyrevolved in the same direction. 1 I

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-' 1. The combination of thev spindle A,retaining-handle D, and operating-handle E with the pawl G andratchet-wheel F, and with the ratchet-wheel or disk 0, having internalgear with the pinion e, toothed wheel I, and spring-bolt J, all made andoperating substantially as herein shown and described, the toothed wheelI having ratchet-teeth formed on its inner edge, as set forth. g

, 2. The combinationof the drill-spindle A, pinion I, and spring-bolt J,when constructed and arranged as described, as an adjunct to the othermechanism for commurlicati ng rotary motion to the drill, substantiallyas described.

CHARLES SINCLAIR. Witnesses FRANK BLOOKLEY, ALEX. F. Rossa'rs.

